Mercury-loader.



E. F. LLOYD.

MERCURY LOADER.

APPLICATION FILED FEB 14, 1911 1,1 32,593, Patented Mar. 23, 1915.

3 SHEETS-SHEET 1- Sum/atom Emma: :41 F. LLOYD q/qhbvwoow E. F. LLOYD.

MERCURY LOADBR.

APPLIOATION FILED P1713114. 1911.

1,132,593. Patented Mar. 23, 1915.

3 SHEETSSHBET 3 E. F. LLOYD.

MERCURY LOADER.

APPLICATION FILED FEB-14.1911. [,132,593. Patented Mar. 23, 1915.

3 SHEETS SHEBT 3.

(Qwuwwtoz Emma s'rF- LLOYD q viwwoeo QM W1 k m/v UNITED ATES rerunsoriuon.

ERNEST F LLOYD, 0F DETRGIT, MICHIGAN.

mnncnar maonze,

Application filed February 14, 1811.

To alt whom it may concern:

Be it known that 1, Banner F. LLOYD, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inMencury-Loaders, of which the following'is a specification, referencebeing had therein to the accompanying drawings. P

This invention relates to a loader for a valve governing the flowthrough a main or through any form of apparatus whereby the valve ismade to operate through the medium of or in accordance with variationsin the drop in pressure in a moving columnof fluid.

The invention consists in the matters hereinai'ter set forth and moreparticularly pointed out in the a pended claims.

In the drawings, igure 1 is a view partially in elevation and partiallyin section of one form of apparatus embodying features of the invention,showing the parts in the positions assumed when the valve to be con-.

rolled is fully loaded; Fig. 2 is a corresponding view showing the partsin the positions assumed when the control valve is not loaded; Fig. 3 isa view partly insection and partly in elevation a modification of thedevice; and Fig. 4 is a plan view of the apparatus shown in Fig. 3.

As herein indicated a vvalve l of any preferred type is operated hy adiaphragm 2 to close under certain conditions of pressure, the diaphragmbeing secured in the usual manner in a drum or shell 3'. The diaphragmhas a cup 4 which is shielded by an upper casing 5 and. may, if desired,provided with removable weights 6 that-constitute a constant load on thediaphra i whereby it operates when under a predetermined pressure. Agovernor drum 7 is divided into two closed compartments by a flexiblediaphragm 8. The upper compartment is in communication through apressure pipe 9 'With a high pressure or inlet arm of a conduit 10, thefluid passing through the latter being the medium whose variations inpressure are to control the valve 1. The other compartmentbelow thediaphragm 8 is in communication with the circuit through a low pressurepipe 11 which opens into the conduit at a point beyond the entrance ofthe presence pipe Specification of Letters Patent.

escape of gas Patented Mar. 23,1915.

fien'ai No, 608,487.

may conveniently be connected to the t iroat of the Venturi pipeindicated forming a by-pass around a restriction or valve 13 placed inthe main on the outlet side of the pressure pipe The downward movementof the diaphragm 8 may be limited by an adjustable stop 14 which asherein disclosed may conveniently be in the form of a rod screwthreadedthrough the base of the drum 7, with a check nut 15 to secure it inadjusted position.

A float chamber 16 is secured on the cover 17 of the drum 7 and isprovided with an open tube 18 in which a stem 19 secured to thediaphragm S freely rcciprocable. A float 20 is secured on the stem 19and is pro vided with a central aperture to clear the tube 18 and with asealing tube 21 closed at its upper end and ads ted at its lower end toproject below the float into liquid'contained in the float chambertoform with the tube 18 a liquid seal that prevents the from the'uppercompartment of the drum 7. Preferably the float 20 is annular or atleast is of such dimensions to leave a narrow interval only between thewall of the float chamber and the-outer face of the float. The upper endoft-he stem extends through an opening in the cover 22 on the floatchamber and is attached by a flexible connecting member 23 to the end ofa walking-henna or balance lever 24. The ends of the latter are prefer--ably segmental to avoid change in the length of the balance arm. whenthe latter is in oblique position.

A counterbalance tank 25 is hung by a flexible member 26 to the ker 1%of the balance arm '2": and is piO'viti charge nozzle "27 at its lowerend. The latter is connected by a flexible pipe or hose,

ed with a dis-- [if desired. A valve 55 it to flow flexible connectionto permit free movement of the diaphragm and cup. The flow through thenipple 27fis controlled by an adjustable'valve 34 oiany preferred type.The parts are so disposed that when the difference in pressure betweenthe pressure pipe 9 and the exhaust pipe 11 due to the flow in theconduit is at a predetermined or desired pcint, the controlling valve 1is open or at least is subject only to the effect of its diaphragm 2 andthe superposed weights 6. If however, this difference in pressureincreases the master diaphragm 8 draws the float 20 into the liquidcontained in the chamber 16 against the buoyant effect of that liquidand thereby raises the counterbalance tank 25. This causes liquidtherein, which is preferably mercury, to flow into the cup of thecontrolling valve and thereby,increase the load on the latter anddepress it against the pressure that supports the valve diaphragm 2.Decrease in difference in pressure between the pressure pipe 9 and theexhaust pipe 11 reverses the opera tion, depresses the tank 25 andallows the mercury or other liquid to flow out of the valve cup. Thevelocity of flow may be regulated by the valve 34 to prevent suddenoscillation of the apparatus and the downward range of movement of themaster diaphragm 8 is also determined by the stop 14.

In Fig. 3 a modification is shown wherein the movement of the maindiaphragm displaces liquid in the float chamber and causes on to thecontrolling valve. In preferred form. such an arrangement of. theapparatus includes a main drum 35 divided by a flexible main diaphragm36 into an upper and lower compartment respectively in communicationpressure points of a conduit through the pressure ipe 37 and exhaustpipe 38. A stem 39 rom the diaphragm extends upwardly and looselythrough the tube 40 into a float tank 41 mounted on a cover-a2 of thedrum 55. A float 43 that nearly fills the "hamberll is secured to theupper end of the stem 39 by a pipe 4A that loosely encircles the tube 40and forms therewith a liquid seal when its lower end is immersed inliquid in the phamber. A pipe 45 connects the float chamber with theupper portion of a diaphragm drum 46 mounted on the casing of acontrolling valve 47 similar tothe valve 1. The valve itself is operatedby a diaphragm 48 011 which there is a cup 49in communication through aninlet nipple 50, flexible hose 51 and fitting 52 with the pipe 45. Ashield 53 protects the drum and movable weights 54 may he controls theflow through the pipe 45'. Bythe latter method of construction movementof the diaphra m 36, which may be limited by an adjusta le stop 56causes the displacement of a greater with the high and. low;

placed on the cup or less volume of fluid in the chamber 41. Vvhen theliquid rises above a predetermined level it flows into the cup 49 of thevalve 47 and thereby tends to overcome the lifting effect of thediaphragm i Qbviously, changes in the details of construction may bemade without departing from ,the spirit of the invention and I do notcare to limit myself to any particular form or arrangement of parts. 1

I claim as my invention: I I

1,. In gas apparatus, a fluid pressure actuated controlling valve, aliquid holder Weighting the valve, a conduit, an adjutage in theconduit, a reciprocable member moving in response to variations in thedrop in pressure past the adjutage, a loading liquid container, adisplacement member operated by the reciprocating member to vary thelevel of the liquid in the container and a conduit between the containerand the holder whereby the levels of liquid in the two varycorrespondingly.

2. In. gas apparatus, a fluid pressure actuated controlling valve, aliquid holder weighting the valve, a loading liquid container incommunication with the liquid holder, a displacement member movable inthe liquid container, and means adapted to be operated by variations inthe drop in pressure in a moving column of fluid and adapted to move thedisplacement member.

3. In gas apparatus, loading means comprising a drum, a movablediaphragm dividing the drum into two compartments, a float chamber onthe drum, a stem on the diaphragm passing through the float chamber, afloat on'the stem in the chamber, pipes each leading from a compartmentof the. drum, a'liquid holder-adapted to form a weight for a valv e, andmeans arranged to vary the level a? loading liquid in the holder inresponse 4,. In gas apparatus, loading means comprising a drum, amovable diaphragm dividing'the drum into two compartments, a floatchamber on the drum, a stem on the diaphragm passing through the, floatchamber, a lioat on the stem in the chamber adapted .to form a liquidseal for the stem, pipes each leading from a compartment of the drum, aliquid holder adapted to form a weight for the valve, and means arrangedto vary level of a loading liquid in the holder in response to movementsof the float.

5. In gas apparatus, loading means com prising a drum, a movablediaphragm divid' ing the drum into two compartments, a float chamber onthe drum, a stem on thedie-Q phragm passing thrpugh" the -fioat chamber,a float onthe stem in the chamber, pipes each leading from a compartment(if ';he drum, a liquid holder adapted 'to form a" weight ior a valve,means arranged to a ry the. level of c a loading liquid in the holder inresponse to the movements of the float, and an adjustable stop in thedrum adapted to limit the movement of the diaphragm in one direction.

6. In, apparatus, a governing drum, a movable diaphragm dividing thedrum into two compartments, a float chamber on the drum, an open tubeextending from the up per compartment of the drum into the floatchamber, a, stem on the diaphragm extending through the tube, anapertured float secured on the stem over rind around the tube, a liquidholder adapted to form a valve weight, and means between the holder andfloat chamber adapted to change the level of a loading liquid in theholder in accordance with the movements of the float.

7. In gas apparatus, a governing drum, a movable diaphragm dividing thedrum into two compartments, a float chamber on the drum, a stem on thediaphragm extending into the float chamber, a float on the stem in thechamber, a diaphragm for operating the valve. a liquid holder on thediaphragm, a Shitlh for the holder, a pipe connecting a nipple on theshield with the float chamber, and a flexible pipe connecting the nippleon the shield with a liquid holder,

8. In gas apparatus, a governing drum, a diaphragm dividing the druminto two compartments, a float chamber on the drum, a stem extendingfrom the diaphragm into the float chamber, a float on the stem forrnnigWith the drum a liquid seal for the stem, valve, a, movable diaphragmfor operating thc valve, liquid holder we ght u v the valve :liaphragmand operatiic con; between the float chamlnrr and the h holder adaptedto vary the levci 3 load liquid in the holder in. accordance with wemovements of the float.

9. In gas apparatus, a governing drum, a

in the conduit and a pipe connecting the lower compartment with a pointof lower pressure in the conduit.

10. In gas apparatus, a governing drum, a diaphragm dividing the druminto two compartments, a float chamber on the drum, a stem extendingfrom the diaphragm into the float chamber, a float on the stem formingwith the drum a liquid seal for the stem, a valve, a movable diaphragmfor operating the valve, a liquid holder Weighting the valve diaphragm,operative connections be tween the float chamber and the liquid holderadapted to vary the level of a loading liquid in the holder inaccordance with the move ments of the float, a conduit, a pipeconnecting the upper chamber of the drum with a point of the conduit, anadjutage in the conduit on the low pressure side of the point ofconnection. "with said pipe, a Venturi pipe forming a bypass around theadjutagc, and a pipe connecting the throat of the Venturi with the lowercompartment of the drum.

1]. ln gas apparatus, a. govcrn i d W1), movablev diaphragm dividing thedriuu into two compartments, a float chamber on the drum, a stemextending from the diaphragm into the float chamber, a float on the stemin the chamber, a controlling valve, a diaphragni f0; operating thecontrolling valve,

a liquid ho der weighting the diaphragm, means controlled by the floatand adapted to cl'zinge the level of a weighting liquid in the holder inaccordance with the movement of the float, and means for regulating therate oi all m re oi the liquid level independently of the "emcnts of thefloat.

12, ..as filJl 'li'llillS, a governing drum, :1

m vahic diaphragm dividing the drum into two coinparlr-cni's, a floatchamber on the drum, a stem extending from the diaphragm into the floavv hanbcr, a float on the stem within the cl atnbcr, a. valve. adiaphragm controlling the valve, a liquid holder weight ing thediaphragm, and llcxible connections aining communication between the .21and the float chamber.

llfii in testimony whereof l aliix my signature in presence of two\vitucsscs.

ERNEST F. LLOYD,

W itnesscs L). l :i'II(KNEY, A, M. SHANNON.

